import java.util.Scanner;
import java.util.regex.Pattern;

public class Q4 {

    String f1(String s){
        String str = "";
        for (int i = 0; i < s.length(); i++) {
            if(i % 2 == 0){
                str += Character.toLowerCase(s.charAt(i));
            }
            else{
                str += Character.toUpperCase(s.charAt(i));
            }
        }
        return str;
    }

    String f2(String s){
        String str2 = "";
        Pattern pattern = Pattern.compile("\\s");
        String[] str = pattern.split(s);
        for (int i = 0; i < str.length; i++) {
            if(i % 2 == 0)
                str2 += str[i].toLowerCase() + " ";
            else
                str2 += str[i].toUpperCase()+ " ";
        }
        return str2;
    }

    String f3(String s){
        String str="";
        for (int i = 0; i < s.length(); i++) {
            str += s.charAt(i);
            if(i % 3 == 2) str+="-";
        }
        return str;
    }

    String f4(String s, int n){
        String str="";
        long number;
        number = Long.parseLong(s)*n;
        str += number;
        return str;
    }

    String f5(String s1, String s2){
        String str = "";
        int sum = Integer.parseInt(s1) + Integer.parseInt(s2);
        str += sum;
        return str;
    }

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        System.out.println("Input string: ");
        String s = sc.nextLine();
        //String s2 = sc.nextLine();
        Q4 b = new Q4();
        System.out.println(b.f4(s,6));
    }

}